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Sept. 22, 1936. F. M. YOUNG UNIT AIR CONDITIONER Filed Aug. 12, 1935 4 Shets-Sheet 1 4 Sheets-Sheet- 2 IQZTOE/YEY P 1936- F. M. YOUNG UNIT AIR CONDITIONER Filed Aug. 12, 1955 7"! Fl!!! W Y Z 5 212W .w m. 4 W I 0 llll ll 4 M ll II P lm; 3 a I K nm A? 7 5 I L o m L 5 H l1l. l 0 v se tyzz, 1936." F. M. YOUNG 2,055,056

UNIT AIR CONDITIONER Filed Aug. 12, 1955 4 Sheets-Sheet s llllllln r H II ill I HIIH l H 4 IL 76. 9 9/ I I Sept. 22, 1936. YQUNG I 2,055,056

UNIT AIR CONDITIONER Filed Aug. 12,1955 4 Sheets-Sheet 4 //v I/ENTOE Patented Sept. 22, 1936 mm are. CONDITIONER Fred Young, Racine, Wis., assignor to Young Radiator Company, Racine, Wis.

Application August 12, 1935, Serial No. 35,739

6 Claim- (CL 257-137) My invention relates to improvements in air conditioners, more particularly those adapted to be positioned in the room servedand having means whereby the air is recirculated and heated.

or cooled.

One of the objects of my invention is to provide means whereby the heating or cooling core may be easily removed or replaced and whereby the liquid'in the core is gravity drained.

Another object of my invention is to provide air dehvery means whereby the air is economically delivered from vertical to horizontal in any desired direction.

A further object is to provide a novel core and supporting means whereby the complete unit may be safely transported and installed, and whereby free expansion and contraction is provided for.

Another object is to provide a'neat, economically manufactured and easily assembled or disassembled housing.

To these and other useful ends my invention consists "in matter hereinafter set forth and claimed and shown in the accompanying drawings in which:

Figure l is a front elevation of a complete unit showing a fraction only, of the air delivery tubes.

Figure 2 is a top view of the complete unit as illustrated in Figure l, a portion of the cover being removed.

. Figure 3 is an end elevation of the unit as illustrated in Figure 1.

Figure 4 is a fractional section of the corner structure taken on line 4-! of Figure 3.

5 Figure 5 is a fractional section taken on line 5-5 of Figure 1.

, Figure 6 is a fractional section taken on line 6-6 of Figure 3. 1

Figure '7 is a fractional section taken on line 1-1 of Figure 1.

Figure 8 is a fractional section taken on line 6-8 of Figure 1.

Figure 9 is a side elevationof one form of a heating core.

Figure 10 is an inlet end view of the core as illustrated in Figure 9.

Figure 11 is a top view of the core shown in Figure 9. I Figure 12 is an outlet end view of the core shown in Figure 9.

Figure 13 is a front elevation of the unit illustrating my improved air distributing outlets.

As thus illustrated the unit, for convenience, is shown as being served by three fans, preferably of the cage type, each designated in their entirety by reference character A. These fans are operatively connected to motor Bin a manher which will hereinafter appear.

I provide a rectangular housing, vertically disposed and comprising a front wall l5 and a rear 5 wall It. The end walls are designated by numerals l1 and I8. I provide vertically positioned stiffening ribs IS in the walls l5 and I6 as illustrated. In wide units, walls l5 and I6 are made in two or more pieces, which are Joined together 10 as indicated in Figure 5, wherein the raised edges 20 and 2| overlap one over the other and are secured together by means of a suitable number of' bolts 22.

The side and end walls are, at their comers, 15 joined together by means of angle irons 25, and cover member 26. This assembly is securely held together by means of bolts 21. The top edges of the walls are secured to angle irons 28, which also act as a support for the lid 29, the lid hav- 2 ing downwardly projecting edges 30, thus to stiffen the lid and improve the appearance 'of the assembly.

The bottom edges of walls l5 and l6 are securely attached to angle irons 3l-3|, by means 25 of a suitable number of bolts 32. Suitable side angles are provided for end walls l1 and I8. Suitable supportinglegs 83 are provided whereby air may pass into the bottom of the cabinet, as will hereinafter appear. 30

The fans A are, preferably, attached to and supported by lid 29, or they may be supported by angle irons which will also act as a lid support. The fan rotors are supported and driven by shaft 35. This shaft is rotatably supported 35 by suitable bearings, one end projecting so as to carry a pulley 36, having a suitable belt connection to motor 18.

Each fan A is provided with an outlet opening 31, through lid 29; thus when the motor B is in operation, room air will pass into the bottom of the cabinet and out at these outlets.

Whether the recirculated air is heated or cooled, it is desirable to discharge the air horizontally near the ceiling and frequently, in different direc- 45 tions. I provide means whereby the air is economically diverted from a vertical to a horizontal direction and whereby the discharge outlet may be turned in any direction as follows:

Necessarily outlet 31 is either square or rec- 5 tangular in cross section. I provide, preferably,

square tube risers 39, each having an elbow 40 at their free ends. Each curve or elbow is, preferably, provided with-one or more transverse parti tions 4!, these partitions extending from the out- 55 let end of the elbow to a short distance below the beginning of the bend; thus as illustrated the air leaves the vertical riser 39, and equalquantities will enter the three spaces 43, 44, and 45 and continue to the outlet in equal quantities, whereas without partitions 4|, the rapidly moving air would be forced centrifugally against the outer wall of the elbow and be ineificiently moved and discharged into the room.

I provide a rounded portion 46 which telescopes over a rounded sleeve 41. The elbow 40 may thus be turned in any desired direction.

In Figure 13, I illustrate the end elbows as pointing outwardly and the center as pointing forwardly. A unit having four fans may be positioned in the center of the room and the outlets pointed oppositely. The air may thus be discharged in opposite directions or the outlets may be moved to whatever position is best suited to the installation.

Referring now to Figures 9, 10, 11 and 12, wherein I illustrate a heat transfer core adapted for steam heating. This core is provided with an inlet header 50 and an outlet header 5|. A suitable number of tubes 52 are operatively secured at their end to the headers, as illustrated. The inlet ends are'held considerably higher than the outlet ends by meansof a header extension 53, the two headers being adapted to lie on angle irons 3| as at 54. The lugs 55 are positioned to act as a transverse guide between members 3|; thus the core C will be free to slide endwise on its supports. Clearly lugs 55 will also contact the angle irons at the end of the cabinet similarly, preventing excessive end movement.

Header 50 is provided with a threaded inlet opening 56, and header 5| is provided with a threaded outlet 51. Closely spaced fins 58, through which the tubes extend are provided. Side housing members 59-59 are attached to the headers as at 60, thus to provide a suitable spacing member for the headers and protect the fin edges frominjury during manufacture and assembling operations.

It will be notedthat the lower edge of members 59 parallel supporting members 3| and are in juxtaposition thereto; thus air will be prevented from passing over the top of members 3| and between members 59 and the side wall of the cabinet.

It will be seen that screw plugged openings 6| register with the unexposed ends of the tubes, thus the tube ends may be expanded and suitable reinforcing sleeves may he inserted and expanded in the tube ends, after which these openings are closed by suitable plugs.

By referring to Figure ,3, it will be noted that I provide removably attached plates 62. The openings covered by these 'plates have a greater width and length than the width and height of either header, whereby the core C may be lifted slightly and moved in either direction into and out of the cabinet, drawer like. In some installa? tions one only of these openings need be supplied. I prefer, however, two openings, thus to provide a single design suitable for any installation.

I provide holdingdown members 63-63, each attached to their respective end wall, the lower ends resting on their respective headers. If it is desired to remove the core in the direction of the header 50, theseholding down members need not be disturbed; but if the core is to be removed in direction of header 5|, then one bolt of each member only adjacent header 5| need be removed and the members 63 swung 'sidewise so header 5!! will pass thereunder.

As thus illustrated and described it will be seen that core 0 is easily removed in either direction, and that a cooling coil may be easily substituted at the end of the cold season or another coil for cooling, permanently provided and positioned between core C and fans A, and supported in'the same manner as core C.

It will be seen that I provide a base 65 for motor B having a pivotal support at one end as at 66. The other end of the base is adjustably supported by screw threaded bolt 61. The base 65 may thus be rocked on pivot 66 to thereby adjust the tautness of the belt. It will also be seen that I provide a shield 38 with which to coverv the belt and pulley for a safe distance above the floor. The shield 38 is shown in section in Figure 13, and its supporting brackets only, are shown in Figure 1.

Clearly applicant's device can be advantageouslypositione'd in the room served because of the adjustable outlets 40 and the air will be equally distributed in the spaces 43, 44 and 45.

The housing structure, illustrated, obviously is simple, strong, and neat in appearance and particularly adapted to the purpose for which it was designed.

Having thus shown and described my invention I claim:

1. An air conditioner of the class described, comprising a cabinet rectangular in horizontal section having means to force air therethrough, a heat transfer core having inlet and outlet headers and a number of operatively connected tubes therebetween, a multiplicity of closely spaced fins through which said tubes extend, two horizontally positioned frame bars extending the length of said cabinet and attached to the inside lower edge of the two side walls forming a reinforcement therefor, said core adapted to fill the air path of said cabinet, the headers at their ends being adapted to slidably rest on said bars, an opening in an end wall of said cabinet having a detachable cover and positioned whereby said core may be inserted or removed through said opening drawer like.

- 2. A device as in claim 1 and further comprising, depending guiding lugs on said headers contacting the inner edges of said bars and thereby limiting the side movement of said core. 3. A device as in claim 1 and further comprising,'the supporting means on said inlet header depending therefrom whereby said tubes will extend downwardly toward the outlet header.

4. A device of the class described, comprising a rectangular in cross section, vertically positioned cabinet having means for moving 'air .therethrough, horizontal frame bars secured alleling said frame bars and in juxtapositionthereto.

5'. A device of the class described, comprising a rectangular in cross section, vertically positioned cabinet having means for moving air therethrough, horizontal frame bars secured to side plates connecting corresponding ends of said headers forming a frame, said headers at their endsadapted to rest on saidvframe bars, said inlet header having depending supports adapted to position the header above the planelof said outlet header, the lower edge of said plates paralleling said frame bars and in juxtaposition thereto, the end panels of said cabinet each having a detachable plate suitably positioned whereby said core may be removed and replaced, drawer like, from either direction.

6. A device of the class described, comprising a rectangular in cross section, vertically positioned cabinet having means for moving air therethrough, horizontal frame bars secured to the side panels of said cabinet for the length thereof, a heat transfer core comprising inlet and outlet headers, a number of tubes operatively connecting said headers and having a multiplicity of fins through which they extend, side plates connecting corresponding ends of said headers forming a frame, said headers at their ends adapted to rest on said frame bars, said inlet header having depending supports adapted to position the header above the plane of said outlet header, the lower edge of said plates paralleling said frame bars and in juxtaposition thereto, the end panels each having a detachable plate suitably positioned whereby said core may be removed and replaced, drawer like, from either direction, said headers at their supports having depending lugs positioned to loosely contact the inner edge of said bars and thereby hold said core in' a central position.

FRED M. YOUNG. 

